Home / 258,164.88-356,272.11-143,454.12

Finding the Fourth Proportional to 258,164.88, 356,272.11 and 143,454.12

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Solution

The fourth proportional to 258,164.88, 356,272.11 and 143,454.12 is: 197,969.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,164.88 : 356,272.11 = 143,454.12 : x
  2. Step 2: Convert to fraction form
    258,164.88/356,272.11 = 143,454.12/x
  3. Step 3: Cross multiply
    258,164.88x = 356,272.11 × 143,454.12
  4. Step 4: Simplify right side
    258,164.88x = 51,108,702,020.59
  5. Step 5: Solve for x
    x = 51,108,702,020.59/258,164.88
  6. Step 6: Final answer
    x = 197,969.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.